So very quiet

Is there any way to let the real engine out of its constraints? Like any kind of muffler or glass pack that would make it sound more beefy? Just wondering because I know the 3800 has more omph than GM lets it have.

Run straight pipes.

Also, I had an idea, a high temperature microphone, and a waterproof subwoofer, install those by your exhaust, so you can turn it on and off when you want, and have a loud exhaust, without angering cops.